


SUM(1L)           MISC. REFERENCE MANUAL PAGES            SUM(1L)



NAME
     sum - checksum and count the blocks in a file

SYNOPSIS
     sum [-rs] [--sysv] [file...]

DESCRIPTION
     This manual page documents the GNU version of sum.  sum com-
     putes a 16-bit checksum for each named file, or the standard
     input if none are given or when a file named `-'  is  given.
     It  prints  the checksum for each file along with the number
     of blocks in the file (rounded up), and the file name unless
     no  arguments  were given.  By default, the GNU sum computes
     checksums using an algorithm that is compatible with the BSD
     sum and prints file sizes in units of 1K blocks.

  OPTIONS
     -_r   Use  the  default  (BSD  compatible)  algorithm.   This
          option  is included for compatibility with the System V
          sum.  Unless the -_s option was also given,  it  has  no
          effect.

     -_s, --_s_y_s_v
          Compute checksums using an algorithm that is compatible
          with the one the System V sum uses by default and print
          file sizes in units of 512-byte blocks instead of 1K.

     The long-named options can be introduced with `+' as well as
     `--',  for compatibility with previous releases.  Eventually
     support for `+' will be removed, because it is  incompatible
     with the POSIX.2 standard.
























Sun Release 4.1           Last change:                          1



